104 lines
3.2 KiB
Python
104 lines
3.2 KiB
Python
"""Twitch EventSub client for handling stream events."""
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import logging
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from typing import Callable, Optional
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logger = logging.getLogger(__name__)
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class TwitchEventSubClient:
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"""
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Client for Twitch EventSub WebSocket connections.
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Handles real-time stream events like chat messages, follows, raids, etc.
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TODO: Implement real OAuth 2.0 token exchange flow
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TODO: Implement WebSocket connection to Twitch EventSub
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TODO: Handle subscription management (follow, subscribe, cheer, raid events)
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TODO: Implement heartbeat and reconnection logic
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"""
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def __init__(self, client_id: str, access_token: str):
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"""
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Initialize EventSub client.
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Args:
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client_id: Twitch application client ID
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access_token: OAuth token for API calls
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"""
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self.client_id = client_id
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self.access_token = access_token
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self.connected = False
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self.event_handlers: dict[str, Callable] = {}
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async def connect(self, channel_id: str) -> bool:
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"""
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Establish WebSocket connection to Twitch EventSub.
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Args:
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channel_id: Twitch channel ID to monitor
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Returns:
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True if connection successful
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TODO: Implement WebSocket handshake
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TODO: Subscribe to stream.online, stream.offline
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"""
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logger.info(f"Attempting to connect to EventSub for channel {channel_id}")
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self.connected = True
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return True
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async def disconnect(self) -> None:
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"""
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Close EventSub connection gracefully.
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TODO: Send close frame to WebSocket
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TODO: Clean up subscriptions
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"""
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logger.info("Disconnecting from EventSub")
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self.connected = False
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async def listen(self) -> None:
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"""
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Listen for incoming EventSub events (blocking call).
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Should run in a background task and emit events to registered handlers.
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TODO: Implement WebSocket message loop
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TODO: Parse and dispatch events to registered handlers
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TODO: Handle reconnection on failure
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"""
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logger.info("EventSub listener started (stub)")
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pass
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def on(self, event_type: str) -> Callable:
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"""
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Register an event handler for a specific event type.
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Args:
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event_type: Type of event (e.g., 'stream.online', 'channel.follow')
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Returns:
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Decorator function
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"""
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def decorator(func: Callable) -> Callable:
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self.event_handlers[event_type] = func
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logger.debug(f"Registered handler for {event_type}")
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return func
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return decorator
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async def emit_event(self, event_type: str, data: dict) -> None:
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"""
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Emit an event to registered handlers (internal use).
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Args:
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event_type: Type of event
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data: Event data payload
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"""
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if event_type in self.event_handlers:
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handler = self.event_handlers[event_type]
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try:
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await handler(data)
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except Exception as e:
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logger.error(f"Error in event handler for {event_type}: {e}")
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